From the list of all available APIs, please select "Custom Search API".

Step-by-Step action:

Press "Enable" button to enable Custom Search API.

Step-by-Step action:

Go to "Credentials" tab.

Click on the "Create Credentials" button.

Step-by-Step action:

In the popup window choose "Browser key" option.

Step-by-Step action:

In this field specify your browser key name.

Enter the domains you need the requests to be accepted from.

Press on "Create" button.

Step-by-Step action:

Copy the generated API key and paste it into the appropriate field of "Add image from Google" section, in your Magento Inspiration Wall Extension. To get back to that section please go to your Magento Admin Panel -> Plumrocket -> Inspiration Wall -> Configuration -> Add Image From Google.